Draw a lake and label the photic, aphotic, littoral, limnetic, and benthic zones

How are glaciations related to Earth's position in a Milankovitch cycle​

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1. In 1970, the U.S. Congress established The Environmental Protection Agency (EPA) to oversee all of the following, EXCEPT: *

A.pollution problems
B.building new nuclear power plants
C.establish new environmental policies
D.research solutions to environmental issues

Biology - Genetics
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which is the method of estimating fish in a pond​

Which of the following statements about water is NOT true?
A. It helps to maintain a normal body temperature.
B. It is a good source of energy.
C. It carries substances throughout the body in the bloodstream.
D. It is needed for all chemical reactions to occur.

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When DNA is damaged inside a cell, enzymes called ________ can cut out and remove the damaged sections.

a.polymerase
b.helicase
c.nucleases

What Are Alleles? Where Do alleles come from?​

(Free Response) Phototropism is a phenomenon observed in plants. Phototropism is best described as a plant’s response to light. Auxin is a hormone and signaling molecule found in plants that promotes cell elongation. It is observed that auxin concentrations are lower in the parts of the plant that are closest to light. Auxin concentrations are higher in the parts of a plant that are in the shade.
Answer the following in the space provided.
A. Describe phototropism using what you know about signal transduction. Start with auxin as a signaling molecule.
B. Explain how altering the receptor would affect the signaling pathway.
C. Predict how a plant would respond to exposure to light on all sides of a growing stem.
D. Provide reasoning and justification for your prediction.

____________________________ is the process in which humans chose the desired traits of an organism.

a
Artificial selection
b
Natural selection
c
Biology
d
Variation

Mendel based his conclusions on his understanding of meiosis.
a. FALSE
b. TRUE

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True or false The sea otter is considered a keystone species that influences the survival of many other species in an ecosystem .

why is carbon dioxide required for photosynthesis

A man is HH for a trait, while his wife is hh. What will their children

All of the following are major glands of the endocrine system expect

what do we call the number "2" in CO2?

If fertilization occurs which hormone triggers the thickening of the endometrium
a.estrogen
b.progesterone

his plant likes to grow in an upward direction and will often grow on other plants. Due to its length it must have a way to hold on as it grows so it does not fall.

For recessive trait to be expressed you need to receive the allele from both parents. True or false

A third-level consumer must be which type?
Carnivore
Herbivore
Producer
Decomposer

Phototropism is a phenomenon observed in plants. Phototropism is best described as a plant’s response to light. Auxin is a hormone and signaling molecule found in plants that promotes cell elongation. It is observed that auxin concentrations are lower in the parts of the plant that are closest to light. Auxin concentrations are higher in the parts of a plant that are in the shade.

Answer the following in the space provided.
A. Describe phototropism using what you know about signal transduction. Start with auxin as a signaling molecule.
B. Explain how altering the receptor would affect the signaling pathway.
C. Predict how a plant would respond to exposure to light on all sides of a growing stem.
D. Provide reasoning and justification for your prediction.

Describe the scales that scientists use to measure the magnitude of an earthquake

Cuando se excita una neurona con estímulos de intensidad creciente se obtiene, a partir del umbral, la misma respuesta eléctrica. En esta situación se pone de manifiesto la característica de: *
A) ley del todo o nada.
B) período refractario relativo.
C) período refractario absoluto.
D) excitabilidad.
E) umbral de excitación.

The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the
lithosphere, hydrosphere, and biosphere. Order the steps above into a logical sequence that might represent steps in
the phosphorus cycle.
A)
111, 111, IV, V, VI.
B)
1. II. IV. IIIVVI
C)
IV. HII VIIVI
D)
II IV V VI

Como se chama a transferencia de enrgia termica flui de um corpo com maior temperatura quando ao outro de menor temperatura quando ha diferença de temperatura entre ambos

What is the purpose of the digestive system?

1. Create energy
2. Swallow food
3. Break down food so nutrients can be absorbed

Which of the following is one way that humans can protect biodiversity?

Explain the four main principles of natural selection